Bronson Pinchot wears a fat suit for his role in this episode.
Adult Gibbs has an established fondness for cinnamon. Here he says his mom used to put a pinch in his hot chocolate when he was a boy.
Two actors were recycled from NCIS: Los Angeles (2009). Kenneth Mitchell played NCIS Special Agent Danny Gallagher in March 2013 on Red (2013) and Marisol Nichols played Keller, Callen's former CIA partner in October 2010 on Stand-off (2010).
Millie Bobby Brown of Stranger Things (2016) (Eleven) makes an appearance on this episode at 10 years old.
The widowed SEAL CMDR Barnes is wearing Navy type 3 NWU (Navy Working Uniform) in the morgue, similar to the Marine MARPAT pattern, rather than the Navy type 1 blue and gray NWU normally seen in the series. Though the Navy authorized the wearing of the type 1 NWU outside military installations, the NSU (Navy Service Uniform) is typically worn when dealing with the public.
Though this CMDR is wearing a name tape and a his trident(SEAL insignia) he is not wearing his battle flag or any other team patches.
Though this CMDR is wearing a name tape and a his trident(SEAL insignia) he is not wearing his battle flag or any other team patches.